You choose my next upgrade!
 

Hello everyone,

I have read so many threads about Intakes/Exhausts dynos and I thank all of you for such rich information, that is beneficial to many of us.

I have recently put a Stillen CBE and a Stillen G3 intakes. Now after reading so many threads i want to add some HFC. Now after researching for hours i have found that the two highly recommended brands are FI & Berk. since i cannot decide, i would like to take a consensus and see which HFC do you have and which one do you recommend?

Also, what about CELs anyone having issues with different codes from recent HFC gens (specifically the FI & Berk)?

At this point (after the HFC, CBE, and G3) would it make any sense to upgrade my Headers? (i am not sure about the headers since it will probably add few more HPs after all of the above upgrades).

As always thank you for all your help, and every piece of information you contribute.

I would go with the FI HFC over Berk HFC. I just installed FI RHFC this past Friday and I am really impressed with the sound.

If you want headers, you'll be wasting your money buying HFCs. One or the other.

Thank you for such a quick respond... does the FI HFC sound deep? i am not looking for loudness rather deep sound that goes with my Stillen CBE.

I have found some videos and some sound files online but unfortunately all were hooked up to different CBE which makes it hard to isolate the tone of the HFC.

Again thank you for your help sir :)

wasting my money meaning if i go LTH right? coz I can go Stillen Headers or something of that sort.

Could you please explain? maybe you know something that i dont :)

Thank you for your input btw... I appreciate it.

Stillen headers are garbage. Either LTHs or Z1 headers are the only options that add power, both of which will not allow VQ37 HFCs.

ok so if i do go HFC it will be pointless to add headers. and if i want to go headers LTH is the only way to go for gains.

I agree with you :iagree:, but i will prefer the HFC rout. so you have answered my questions as far as the worthiness of headers with my set-up.

Thank YOU :)

LTH pretty much like running test pipes right?

I also would like feedback on the FI resonated hfc. I love the sound of my berk cbe but don't mind it being a little bit louder.

You can buy the Z1 headers and use 350z HFCs.

LTH for NA engines and Test pipes for Turbo. Correct me if i am wrong but same thing.

FI HFC sounds much deeper imo vs the berks are louder. so depends on taste, i have read many posts about the quality and gains being the same.

but that wouldn't be cost beneficial. coz the gains are probably half of what the LTH would do for the same amount of money if not less.

Seems like if I will be going HFC its pointless to do Headers. Specially since I have the CBE and the G3.

The problem with na cars is that we can never create new power (like most turbos), we are only better managing our system, to revive the lost power. That being said we can probably get most of the lost power back with few bolt ons and after that things will start not making sense!! gain to money ratio speaking.

You forgot Stillen HFC's.

Not true at all. It seems like the Z1 headers/350 HFC combo are in the same ballpark as LTHs for power, and the price is comparable.

My F.I. RHFC sound is pretty effen sweet with my exhaust and an awesome match up. You can go with either the resonated or the non-resonated HFC. You free up torque and power throughout the entire RPM band and your overall sound volume will increase while making your exhaust note much deeper and smoother. I have no complaints or regrets by adding the F.I. RHFC.

Are those any good compared to FI & Berk? the only reason why i ask is for every 10 posts of FI & Berk i get 1 Stillen recommendation.

Would you care to shed a light if you own or know of the stillen to be a better or comparable product?